1. Beijing Center for Crystal Research and DevelopmentKey Laboratory of Functional Crystals and Laser Technology of Chinese Academy of SciencesTechnical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 China
2. University of Chinese Academy of Sciences Beijing 100049 China
3. Institute of Chemical MaterialsChina Academy of Engineering Physics Mianyang 621900 China
4. Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials School of Materials Science and TechnologyChina University of Geosciences Beijing 100083 China
5. Department of ChemistryPrinceton University, Princeton NJ 08544 USA